Coil-On-Plug wiring...SERIES or PARALLEL???

[DSMeanie]

Those who made their own C-O-P set up, how did you guys wire your 1-4 and 2-3 coils,
Series or Parallel? I've seen these two configurations and I'm wondering which is the ideal way.

I will be using a CDI box for the set up. Either ARC-2 or HKS DLI 1.

 

[GVR4592]

You have to wire them in series.